A novel reconfigurable microstrip patch antenna for IMT-A

Abstract

In this paper a novel reconfigurable patch antenna is designed for IMT-A. The antenna has a simple design with five patches connected by four diodes. By suitably switching ON the diodes, reconfiguration in the radiation pattern is achieved while keeping the operating frequency fixed. Six different radiation patterns were achieved using the design and in all of them the band width requirement of IMT-A was achieved. The design was done using the well known EM simulation software, IE3D. The design was fabricated on RO3010 substrate with relative permeability of 10.2 and having thickness 1.28 mm and with the diodes replaced by microstrip lines for the ON state as an ideal case. Finally the fabricated designed was analysed using the vector network analyser.